The world’s best casinos combine luxurious amenities with a mind-blowing number of games. They feature top-notch hotels, spas, restaurants and even a few bars and theater productions. However, most of the money they make comes from gambling – the games that rely on luck or skill, like blackjack, roulette and poker.

Almost every casino in the world has some sort of high-end entertainment on tap for their patrons, and many are located in beautiful cities that attract visitors from around the globe. The famous Bellagio in Las Vegas, for example, is famous for its dancing fountains and breath-taking art installations, and was even featured in the 2001 movie Ocean’s Eleven.

While musical shows, lighted fountains, shopping centers and lavish hotels help to draw in the crowds, casinos would not exist without the games of chance. Slot machines, blackjack, roulette and craps are just a few of the games that provide the billions in profits that casinos rake in each year.

Although it is possible to win a huge amount of money in a casino, the odds are generally against you. Some people have found ways to beat the house, though, including counting cards in blackjack, noticing patterns on a roulette wheel and adjusting the payouts of slot machines. Most of these tricks require a lot of patience, loss tolerance and discipline. Regardless of how you play, casino security is always on the lookout for cheats and scammers. They have banks of monitors in a room that can be adjusted to focus on particular suspicious patrons, and some casinos also use sophisticated surveillance systems with an “eye-in-the-sky” to watch everything happening inside the building.